67 lines
1.5 KiB
Markdown
67 lines
1.5 KiB
Markdown
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# Sheetpress Experiments - Cassandra - 650 - EDC - RC1 - Conclusion
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## 10 mm
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A one-stage process suitable for up to 10 mm thickness, though prone to warping effects.
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### Conclusions
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- Minor flatness errors were observed, typically 0.5-1 mm.
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- Warping and material shrinking occurred, especially near corners.
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### Recommendations
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- Reheat at 140°C and press again to minimize shrinkage and warping.
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- For a better finish, repeat the press with a harder surface.
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---
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## 20 mm
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A two-stage method offering better control at greater thickness.
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### Conclusions
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- The inclusion of intermediate dies reduced warping and improved overall flatness.
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### Recommendations
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- Incremental heating and controlled die insertion are recommended.
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- Use presses with adequate pressure (20 tons minimum) for thicker sheets.
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---
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## 30 mm
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A two-stage method offering better control at greater thickness.
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### Conclusions
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- The inclusion of intermediate dies reduced warping and improved overall flatness.
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### Recommendations
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- Incremental heating and controlled die insertion are recommended.
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- Use presses with adequate pressure (20 tons minimum) for thicker sheets.
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---
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## 40 mm
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A three-stage process for 40 mm sheets with significant handling challenges.
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### Conclusions
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- Height differences were observed, particularly on the die-engaged side (up to 5 mm).
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- Air pockets and corner warping were frequent issues.
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### Recommendations
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- Implement intermediate reheating steps.
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- Introduce controlled cooling phases to mitigate height inconsistencies.
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